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A compact CPW-fed wideband metamaterial-inspired antenna for GSM, WLAN/Wi-Fi, and WiMAX applications

Published online by Cambridge University Press:  04 April 2016

Ashish Gupta  and
Raghvendra Kumar Chaudhary
Ashish Gupta
Affiliation:
Department of Electronics Engineering, Indian School of Mines, Dhanbad, Dhanbad-826004, India. Phone: +91 326-2235127
Raghvendra Kumar Chaudhary*
Affiliation:
Department of Electronics Engineering, Indian School of Mines, Dhanbad, Dhanbad-826004, India. Phone: +91 326-2235127
*
Corresponding author:R. K. Chaudhary Email: raghvendra.chaudhary@gmail.com
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Abstract

A compact coplanar waveguide (CPW)-fed wideband metamaterial-inspired antenna is designed and developed in this paper. The proposed structure is an asymmetric structure in which three rectangular stubs are employed between signal patch and CPW ground plane. It is demonstrated that these stubs provides lumped parameters of conventional epsilon-negative transmission line (ENG-TL). As an advantage of these stubs proposed antenna operates on 1.67–2.76 GHz with −10 dB impedance bandwidth of 49.2%. The proposed antenna having small electrical size of 0.17λ0 × 0.35λ0 × 0.01λ0 at fo = 2.21 GHz. The simulated average gain and radiation efficiency of the proposed antenna is 1.61 dB and 96.33% respectively throughout the bandwidth. Properties such as smaller electrical size, simpler design, consistent radiation characteristics, and ease of fabrication are making this antenna suitable for GSM, WLAN/Wi-Fi, Bluetooth, and WiMAX applications.

Keywords

Metamaterial-inspired antennawideband antennaWiMAXepsilon-negative transmission line (ENG-TL)
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 3 , April 2017 , pp. 567 - 571
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

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References

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